CVE-2020-6800
Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts. This vulnerability affects Thunderbird < 68.5, Firefox < 73, and Firefox < ESR68.5.
Los desarrolladores de Mozilla y los miembros de comunidad han reportado bugs de seguridad de la memoria presentes en Firefox versión 72 y Firefox ESR versión 68.4. Algunos de estos bugs mostraron evidencia de corrupción de memoria y presumimos que con esfuerzo suficiente algunos de estos podrían haber sido explotados para ejecutar código arbitrario. En general, estos fallos no pueden ser explotados por medio del correo electrónico en el producto Thunderbird porque la scripting está deshabilitado al leer el correo, pero son potencialmente riesgosos en el navegador o en contextos similares a los del navegador. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.5, Firefox versiones anteriores a 73, y Firefox versiones anteriores a ESR68.5.
Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, bypass same-origin restrictions, conduct cross-site scripting attacks, or execute arbitrary code. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-01-10 CVE Reserved
- 2020-02-14 CVE Published
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-787: Out-of-bounds Write
CAPEC
References (11)
| URL | Tag | Source |
|---|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1595786%2C1596706%2C1598543%2C1604851%2C1608580%2C1608785%2C1605777 | Broken Link |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/202003-02 | 2022-01-01 | |
| https://security.gentoo.org/glsa/202003-10 | 2022-01-01 | |
| https://usn.ubuntu.com/4278-2 | 2022-01-01 | |
| https://usn.ubuntu.com/4328-1 | 2022-01-01 | |
| https://usn.ubuntu.com/4335-1 | 2022-01-01 | |
| https://www.mozilla.org/security/advisories/mfsa2020-05 | 2022-01-01 | |
| https://www.mozilla.org/security/advisories/mfsa2020-06 | 2022-01-01 | |
| https://www.mozilla.org/security/advisories/mfsa2020-07 | 2022-01-01 | |
| https://access.redhat.com/security/cve/CVE-2020-6800 | 2020-02-24 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1801920 | 2020-02-24 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 73.0 Search vendor "Mozilla" for product "Firefox" and version " < 73.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 68.5.0 Search vendor "Mozilla" for product "Firefox Esr" and version " < 68.5.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 68.5.0 Search vendor "Mozilla" for product "Thunderbird" and version " < 68.5.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
| ||||||